Aeroplane engine



WH 79 393@ H. BLlDsoE Lgggs AEROPLA'NE ENGINE f Filed March l2, 1930 2Sheets-Sheet l INVENTOR Bk@ L Andr??? AW@ 7 w31: H, Buns@ AEROPLANEENGINE FiledMarch l2, 1930 2 Sheets-Sheet 2 HNVENTR fing/0 m/we ATTQRNEYPatentedy Apr. 7, 1931 PATENT oFFl'cE- H-UGO IBLIDSOE, OF N ORTH'.PLAINFIELD, NEW JERSEY v.annorrmqrz ENGINE Application led March' 12;1930. K Serial No. 435,112.

protruding portion, and a piston within each cylinder, said pistontohave an outer end circular extension engageable in the said protrudingportion; an opening for inlet and exhaust being formed in the saidcircular extension of the' piston.

1t will thus be evident, that there in this manner has been provided adouble combustion chamber, although the ring practically will take placesimu taneously.,l

An ante-chamber with what may appropriately be termed a loatin valve isarranged upon the lower side o the cylinder,

said ante-'chamber connecting the ga's inlet pipe with the lowercombustion chamber.

For further comprehension of the invention and of the objects andadvantages thereof, reference'I will be had to the 'following 3 0description and accompanying drawings, and to the appended claims inwhichthe various novel features of the invention are more par-yticularly set forth,

In the accompanyingdrawings forming a material' part of 4this disclosureFigure 1 is a side elevational view showing the relative arrangement ofthe two rows ,of cylinders, one behind the other; Figure 2 is a to planeview of the said cylinders, Flgure 3 illustrates the detail constructionof lthe cylinders proper.

' 1n the embodiment of my invention shown in the drawings there aresixteen cylinders, eight in each row, Only one cylinder of each row,however, has been shown in detail; the front cylindersv are designatedby the character F and the rear ones by R. rlhe liring order isindicated by the subnumerals F1, R2,

F3, R4, F5, R8, etc. Y

Referring more particularly to the drawwhile` in s, 10 indicates one ofthe cylinders. Each cy inder is provided with a cylinder head 12,comprising a flange 13 and a circular protruding portion 14 so as toform ahollow portion 15. A piston 16 is slidably mounted at within eachof the cylinders, and each connects by means of a rod 17 with a crankshaft.

rlhe cylinders are arranged in a circle as shown in Figure 1 the usualoil tank and @il piping being provided Jfor.

The inner ends of the cylinders should be of a cup form indicated byreference numeral 18, so that splashing oil within the casing mayreadily be directed within the interior @l5 of the cylinder.

The said cylinders are provided with means for cooling, indicated by ns19.

The piston 16 is formed with a circular eX- tension 20. An opening 21connects the outer 'm side of the said extension with the lowercombustion chamber 22. Piston rings 23 are mounted upon the pistion 16,'and piston rings 24 upon the circular extension 20.

Each of the cylinders is provided with an exhaust port 25 cooperatingwith an exhaust valve 26, the latter being operated by a valve rod 27connected with a crank 27a and actuated by a cam disc 27 b in the usualmanner,

asshown in Figure 3. A spark plug is indi- 80 l cated by 28.

Corresponding to the upper combustion chamber arranged in the circularprotruding portion 111 of the cylinder, is a lower. combustion chamber22, extending vertically @5 and horizontally with respect to the mainportion of the piston .16, the said upper and lower combustion chamberregistering by means of the opening 21 in the circular piston extension20.

An ante-chamber 29, serving as an inlet port, is formed upon the lowerside of the cylinder; the said chamber connects withan intake pipe 30.

ln the said chamber is arranged a valve 32, @5 the said valve beingprovided with a stem 33; this valve is slidably supported at its innerend and by a boss 32a and tins 325 acting as stops during the suctionstroke which oves the valve to the central position -in theA um ,thesaid valve will on accountof the higher pressure within the cylinder bepushed outward towards-the front wall 34 ofthe antechamber with theresult that the said valve in this position will close the inletlport30.

During the intake stroke-, however, the` condition is reversed, as thesuction from within during this stroke produces a partial t vacuum whichdraws the said valve away from the intake pipe 30 to an intermediateposition in the said antechamber, as the said valve will be held midwaysin the latter by means of the fins 326, thus permitting the inflow ofgas to the combustion chambers.

It is evident, that otherwise the operation of this engine issubstantially similar to that of an ordinary internal combustion engine.

While 'I have illustrated and described my invention w'th some degree ofparticularity I realize th t in practice various alterations therein maybe made. I therefore reserve the right and privilege of changing theform of the details of construction or otherwise altering thearrangement of the correlated parts without departing from the spirit orscope of the appended claims.

What I claim as new,'and desire to secure by Letters Patent of theUnited States, is

Claims.

1. In an aeroplane engine, a plurality of cylinders projectingtherefrom, each cylinder provided with a cylinder head formed with acircular protruding portion, and with a piston formed with an outer endcircular extension engageable in the said protruding portion, inletmeans comprising an antechamber having a oating valve arranged therein,and an exhaust port in the said circular extension.

2. An aeroplane engine having a plurality yof cylinders, each cylindercomprising a lower broader and an upper more narrow portion, a pistonshaped to fit said cylinder" and being at its upper portion providedwith means for conveying gas to the upper cylinder portion, and afloating valve controlling the inlet of gas, substantially as shown anddescribed.

3. An aeroplane engine having a plurality of cylinders, each cylinderbeing formed with a wider bottom portion and a more narrow top. portion,the said bottom portion terminating in a flange, a piston comprising acorresponding wider bottom portion and a more narrow top portion, meansarranged in the top portion of the said piston for conveying gas to theupper portion of the cylinder, an

ante-chamber arranged upon the side of the lower portion of the cylinderand means disposed in-the said ante-chamber for the regulation of theinlet of gas.

fing said floating valve.

4. In an aeroplane engine a plurality of cylinders arranged in two rows,each cylinder being provided 'with a double bore, one in elongation ofthe other, the lower one being of a substantially wider and the upperone of a more narrow dimension, a piston correspondingly shaped, atubular opening arranged in the upper portion of the piston forconveying gas to the upper portion of the cylinder, a slidable exhaustvalve and a floating intake valve, the latter being disposed in theante-chamber arranged upon the side of the cylinder and adapted toconvey gas from the inlet pipe to the said cylinder, means for actuatingthe piston, and cooling fins arranged upon the said cylinder.

5. /An aeroplane engine having a plurality of cylinders, each cylindercomprising a lower broader and an upper more narrow portion, a pistonshaped to fit said cylinder and being at its upper portion provided withmeans for conveying gas to the upper cylinder portion, and a iioatingvalve controlling the inlet of gas, eachcylinder comprising a doublecombustion chamber, a plston fitted to operate in connection with saiddouble chamber, the upper portion'of the piston being formed with achannel for connecting the two sectional combustion chambers, an

ante-chamber arranged upon the lower side of the cylinder and adapted tocooperate with a Hoating valve controlling the inlet of gas, and meansfor regulating and guid- Signed at New York city, in the county of NewYork and State of New York this 1st day of March, A. D. 1930.

- HUGO BLIDSOE.

